Check if character
is.character(x)
x | An H2OFrame object |
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# NOT RUN { library(h2o) h2o.init() f <- "https://s3.amazonaws.com/h2o-public-test-data/smalldata/coxph_test/heart.csv" heart <- h2o.importFile(f) heart["transplant"] <- as.character(heart["transplant"]) is.character(heart["transplant"]) # }